Withdrawal of Propeller shaft, survey and assembly propeller shaft Withdrawal,survey assembly propeller shaft Withdrawal,survey assembly .All large single screw ocean going ships have solid flanged propeller shafts, which necessitates the withdrawal of the shaft within the machinery The Rudder is ;positioned just behind the propeller and hence prevents the outward withdrawal of the shaft…Details
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WHAT IS DRY DOCK? NECESSITY OF DRY DOCKING – BY A.K.RAMANUJAN Reasons for dry-docking? Dry dock dry docking necessity. The dry docking activity of cargo ships on a regular basis is a requirement for efficient and safe operation of ships and has two main objectives which are as follows :- To clean, scrub, prepare …Details
Boiler basics and types of boilers | Common issues found on Boiler feed water | Boiler water treatment fundamentals | Water Treatment Philosophy and Overview | Water Treatment Philosophy and Overview 1 .TYPES OF WATER General Water could generally be described as the most important of all chemical substances. Its chemical designation is H2O; the water molecule is composed of 2…Details
LIST OF VARIOUS STATUTORY CERTIFICATES & DOCUMENTS TO BE CARRIED ON BOARD SHIPS. CERTIFICATES TO BE CARRIED VALIDITY OF CERTIFICATES CONVENTION SURVEY ISSUANCE Cargo Ships Foreign going (all in original) International Tonnage Certificate (1969) Valid for lifetime unless major change in construction. International Tonnage Convention 1969 Surveyed by Class, measurements are taken, computed. Issued by…Details
VARIOUS SHIP PLANS REQUIRED BY SHIPYARD FOR DRY DOCKING VARIOUS SHIP PLANS REQUIRED FOR DRY DOCKING :- The following plans and drawings are required to be submitted to the shipyard for their use to enable the ship to be dry docked safely. To be submitted before ship enters dry dock (1) G.A. plan (a…Details
Vacuum Sewage System General Description The system uses vacuum to transport sewage from toilets and urinals (Collected in a local tank behind the urinal and activated by a float as the level rises) to collecting units. There is a vacuum only ion the piping network and collecting units (Toilets, urinals etc.) remain under atmospheric pressure…Details